2845864 has 32 divisors (see below), whose sum is σ = 6177600. Its totient is φ = 1203840.

The previous prime is 2845853. The next prime is 2845873. The reversal of 2845864 is 4685482.

2845864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4699 + ... + 5269.

It is an arithmetic number, because the mean of its divisors is an integer number (193050).

2^2845864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2845864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3088800).

2845864 is an abundant number, since it is smaller than the sum of its proper divisors (3331736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2845864 is a wasteful number, since it uses less digits than its factorization.

2845864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 669 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 2845864 is about 1686.9688793810. The cubic root of 2845864 is about 141.7113756618.

The spelling of 2845864 in words is "two million, eight hundred forty-five thousand, eight hundred sixty-four".